Outlook on the web: New setting to use data classification services for DLP evaluation [MC1315220]

Outlook on the web: New setting to use data classification services for DLP evaluation [MC1315220]

Message ID: MC1315220 Introduction We are introducing a new organization-level setting that allows admins to migrate Outlook on the web (OWA) from Exchange-based Data Loss Prevention (DLP) policy evaluation to Data Classification Services (DCS)-based DLP policy evaluation. This change brings OWA…
(Updated) Planner is now available in Outlook and Microsoft 365 Copilot [MC1309747]

(Updated) Planner is now available in Outlook and Microsoft 365 Copilot [MC1309747]

Message ID: MC1309747 (Updated) Updated May 18, 2026: We have paused rollout of this feature at this time. We will communicate via Message center when we are ready to proceed. Thank you for your patience. [Introduction]We’re making it easier for users…
(Updated) Outlook: Improved handling of disallowed and failed email reactions [MC1261593]

(Updated) Outlook: Improved handling of disallowed and failed email reactions [MC1261593]

Message ID: MC1261593 (Updated) Updated May 18, 2026: We have updated the timeline. Thank you for your patience. [Introduction] We’re improving how Outlook respects the x‑ms‑reactions: disallow header in Classic Outlook for Windows. This update ensures that when reactions are disallowed,…
New Outlook for Windows: LDAP support for S/MIME certificate lookup [MC1310680]

New Outlook for Windows: LDAP support for S/MIME certificate lookup [MC1310680]

Message ID: MC1310680 [Introduction]New Outlook for Windows now supports Lightweight Directory Access Protocol (LDAP) directories for S/MIME certificate lookup. This enables tenants to configure LDAP directories for their organization as well as enabling users to configure LDAP directories themselves. Once…